ASoC: Disable S3C64xx support in Kconfig

Due to the process and communications issues with the 2.6.30 S3C
platform merges none of the underlying arch/arm code for S3C64xx audio
support made it into mainline, rendering the drivers useless.  Disable
them in Kconfig to avoid user confusion - users patching in the required
support can always reenable this too.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/s3c24xx/Kconfig

 config SND_S3C24XX_SOC
 	tristate "SoC Audio for the Samsung S3CXXXX chips"
-	depends on ARCH_S3C2410 || ARCH_S3C64XX
+	depends on ARCH_S3C2410
 	help
 	  Say Y or M if you want to add support for codecs attached to
-	  the S3C24XX and S3C64XX AC97, I2S or SSP interface. You will
-	  also need to select the audio interfaces to support below.
+	  the S3C24XX AC97 or I2S interfaces. You will also need to
+	  select the audio interfaces to support below.
 
 config SND_S3C24XX_SOC_I2S
 	tristate